Question about Dometic RM2852 Refrigerator

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CHANGED LOWER CONTROL BOX BUT WILL NOT WORK HEATER IS ON ALL THE TIME

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Hi!!

Check the climate control heater switch, it may be defective. (Stucked in the "ON" position.)

CLIMATE CONTROL HEATER

The climate control is a switch operated DC electric
heater. Its primary function is to warm the frame of the
refrigerator during high temperature/high humidity
conditions. This prevents the formation of condensation
on the metal frame.
To check the switch, disconnect the wires and do a
continuity check. In the OFF position, there should be
no continuity. In the ON position, there should be a
continuity reading.


To check the heater itself, do an ohms resistance
reading on the heater wire by using a properly calibrated
ohm meter. The proper ohms reading is 34 ohms
± 10%. The approximate amp draw is less than .5 (1/2)
amp.

NOTE: The climate control will draw DC power continuously.
It should be turned off when charging source is
not available.

Also check the ELECTRODE

First, do a visual check for cracks or breaks on the
ceramic insulator. Verify the mounting bracket is attached
properly to the electrode. If either of the above is found, replace the electrode. The spark gap must be set at three sixteenths (3/16") of an inch and tip of electrode above the slots in the burner. If igniter (see Sec. 5.5A or B) and high voltage cable
(see Sec. 5.6A or B) are good and there is no spark at
the tip of the electrode, replace the electrode.

Posted on Sep 03, 2010

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Posted on Jan 02, 2017

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element-connection-450.jpg
For images and product information
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You checked ohms, did you check for 240V across lower element when lower element is turned on?

Energy smart electric water heater
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  2. Disconnect the negative battery cable and wait at least 90 seconds to proceed working on the vehicle.
  3. Disconnect the power steering and coolant reservoirs.
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Disconnect the coolant reservoir

4. Disconnect the coolant reservoir and power steering brackets from the side of the heating unit box.

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Remove the coolant reservoir bracket from the side of the heater unit


aa7a886.jpg Separate the power steering reservoir bracket from the side of the unit also

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